THE ART OF SECRET MESSAGE; STEGANOGRAPHY

 

Silk from China, wrote a message on the ball of wax wrapped around them. Wax Ball "Lauan", and can be hidden in the messenger. 

 

Herodotus, the Greek historian, not less, reliable entertainment, reported a more sophisticated way. Histaeus, ruler of Miletus, Aristagorus his friends to send a message to the temptation to rebel against the Persians was. The Histaeus, shaved the head of his most trusted slave of slaves tattooed a message on the scalp. After the hair back, the slave has grown Aristagorus sent securely hidden message. 

 

Later in the story of Herodotus, the word of the Spartans are preparing to invade the winner Kuserukusesugirisha. Your information, Demeratus, was a Greek in exile in Persia. Fear of being discovered, Demeratus has written a message to the wooden tablet wax backing. Then, the message hidden beneath the fresh layer of wax. Sentinel easily sailed past the road to reveal a clean slate. 

  

More subtle method is almost as old, is using invisible ink. As described, the first century until World War II is generally invisible ink was used for the communication of serious very soon.Simple lemon juice, milk, urine or other organic compounds that are all a dark color, which was held in the flames. Bishop Jonuirukinsu 1641, onion juice, alum, ammonia salts suggests, is a worm glow bright for a dark "type distillation juice." Invisible fluorescent ink under ultraviolet light counterfeit devices today are used as anti-emit. For example, "empty" to check, and other official documents are printed in ink that appears to be under the ultraviolet radiation used for the copy. 

 

During the American Revolution, both sides will also ink and chemical-intensive, UK, in 1777 was detected by a special development needed for the American Way. During the Second World War, the two sides and ink to create a new private developers rushed to find the ink on the enemy. Finally, however, is unreal, invisible ink, the amount of traffic.

 



    

Comments

[guerine]

i like the skeleton....where does it come from??
great combination of pictures anyway.
from France, Guerine.

[Alice]

AMAZING what movie are the pictures from??

[johnny]

yes What movie !!!???

[Raffaella]

What Movie?